Thursday, January24, 2019 L-36.com


Marine Weather and Tides
Ashland, IL

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:13AMSunset 5:12PM Thursday January 24, 2019 1:07 AM CST (07:07 UTC) Moonrise 9:36PMMoonset 9:48AM Illumination 88% Phase: Waning Gibbous; Moon at 18 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
    EDIT      (on/off)   Help


7 Day Forecast for Marine Location Near Ashland, IL
   Hourly   EDIT   Help
location: 39.88, -90.05     debug


Area Discussion for - Central Illinois, IL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 kilx 240542 cca
afdilx
area forecast discussion... Corrected
national weather service lincoln il
1142 pm cst Wed jan 23 2019
corrected aviation section

Update
Issued at 756 pm cst Wed jan 23 2019
clearing line has pushed east to about a lacon-springfield line
this evening, a little faster than earlier projections. Main
impacts on temperatures due to this are near galesburg, where the
fresh snow has dropped temperatures to near 10 degrees already.

Made some downward adjustments to the temperature trends over
mainly the far northwest cwa, where there was some snow
accumulation earlier today. However, temperatures should start to
level off a bit toward midnight, as a surface ridge begins
building over western illinois and shifts winds more southwest.

Sky cover was also adjusted as far east as about i-57, although
some additional clouds will start moving in from the northwest
overnight.

Updated zones grids have been sent.

Short term (this evening through Thursday)
issued at 330 pm cst Wed jan 23 2019
the weather system that produced the rain across the area and snow
northwest of the il river has moved well east and northeast of the
area. Satellite shows clouds clearing across the area as well. The
west to northwest winds will continue to decrease in speed this
evening and with continued snow cover over a good portion of the
area am expecting overnight temps to fall well below normal,
reaching down to around 10 near galesburg to around 20 in
southeast il.

Tomorrow, a weak wave trough will move through the area. With the
very cold temps, it wont take much to produce some light snow and
flurries over the area. So have included this weather into the
forecast for tomorrow. Have also continued patchy blowing snow
northwest of the il river where the newest snow has fallen. Most
of the snow fell in knox county, but other areas up to the il
river had a little as well. Northwest winds will gust to 25 to 30
mph at times so there could be some blowing and drifting of the
new snow. Do not think this reaches blowing snow advisory
criteria, but difficult driving conditions will be possible out
in the country on rural roads, especially north-south roadways.

Long term (Thursday night through Wednesday)
issued at 330 pm cst Wed jan 23 2019
after the weak clipper moves through thur, clouds will clear and
very cold temps are expected to advect into the CWA for thur night
and Fri morning. Winds will also decrease in speed, making for
ideal conditions for extremely cold temps along with very cold
wind chills. Thur night lows are expected to reach to zero or
below north of i-70 with single digits above zero south of i-70.

Wind chills will drop to below -15 over most of the area for thur
night through Fri morning. Already been messaging this bitter cold
temps for a couple of days but went ahead and issued a wind chill
advisory for above mentioned time period. Cold, below normal
temps will continue Friday and into the weekend. A small warmup
could happen on Monday of next week but this will be short lived
as bitter cold temps return for Mon night through wed.

An active winter patter will remain in place for most of the long
term with three different weather systems effecting the cwa. The
first one will be Fri afternoon through Fri night. The previous
model runs had this system tracking across southwest il into
southern il through the period. Now the models have the system
further north, tracking along i-74. So higher pops are not north
with this forecast period. Temps will be cold enough across the
area for all the precip to be snowfall.

After a brief dry period on Sat and Sat evening, another clipper-
type system will move into the area for late Sat night through
Sunday. This system will again be all snow as it moves through the
area but appears to be a weaker system.

The last system will be right on the heels of the previous one and
be the strongest of the three systems during this period. This
system will bring all snow to the northern half of the CWA Sunday
night through Monday evening with a mix of rain and snow to the
central part of the area... And rain to the southeast. Accumulating
snow is definitely likely across the northern third of the area,
mainly along i-74.

After this last system dry and bitter cold conditions are expected
late Monday night through wed.

Aviation (for the 06z tafs through 06z Thursday night)
issued at 1117 pm cst Wed jan 23 2019
low cloud deck has passed all the TAF sites except for kcmi late
this evening, and that holdout should scatter out during the next
couple hours. However, MVFR conditions will begin moving back in
from the northwest toward 12z, as a cold front approaches. Some
lower visibilities continue to be indicated in the high-res models for
a couple hours Thursday morning, but coverage of any responsible
snow showers is more uncertain. Will include a prob30 group for
4sm visibilities at kpia kbmi ahead of the front for now. Once
the front passes, ceilings will remain around 1000-1500 feet a
good portion of the afternoon, gradually lifting above 2000 feet
before clearing out during the evening. Northwest winds will also
be gusting 20-25 knots with the strong cold air advection, and
this will continue through the end of the TAF period.

Ilx watches warnings advisories
Wind chill advisory from 6 pm Thursday to noon cst Friday for
ilz027>031-036>038-040>057-061.

Update... Geelhart
short term... Auten
long term... Auten
aviation... Geelhart


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Municipal Airport, IL12 mi12 minW 610.00 miFair17°F13°F84%1013.5 hPa
Springfield - Abraham Lincoln Capital Airport, IL20 mi15 minWNW 510.00 miFair16°F14°F92%1014.2 hPa

Wind History from IJX (wind in knots)
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
Last 24hrS3CalmCalmCalmW4W19
G24
W21
G28
W16
G21
W15
G22
W14
G21
W19
G24
W18
G23
W16
G19
W14W16W13W9W10W7W3W4W7W5W7
1 day agoSE10SE14
G18
SE11
G16
SE12
G17
SE14
G19
SE15
G19
S16
G23
S13
G19
S14
G24
S16
G26
S15
G24
S14
G22
S13
G17
S12
G17
S7S10S10
G16
S11
G15
S9
G15
S9S7S4S5S4
2 days agoCalmCalmNE4E5E6E5E8E9SE9SE15
G22
SE15SE18SE12
G22
SE12
G19
SE16
G22
SE12E16
G21
SE17
G23
SE19
G22
SE15
G20
SE17
G22
SE16
G21
SE16
G21
SE13
G22

Tide / Current Tables for
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Central Illinois, IL (2,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Central Illinois, IL
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.